I'd rather be viewing the world from behind a computer screen than from behind the bars of a prison cell (where Pickard is), or from amidst the wreckage of a career ruined by the lies of a snitch (where Salvinelli is). Both men thought of and treated Halpern as a son, and he turned informant against them to save his own ass.
I understand why he did it; he felt with his education, position, family, etc. that he had too much to lose, that he had to cooperate with the DEA.
But to keep working among the psychedelic research community, some of whom he tried to collect evidence against at the DEA's behest? That is supremely disrepectful. He recorded phone conversations with Sasha Shulgin (a fellow speaker at this conference, and a man whom most of us hold in the highest regard) attempting to get Sasha to admit to illegal activity which the DEA could use.... I don't know how he can look Sasha in the eye these days, much less speak at the same conferences. He did the same thing to David Nichols, another speaker at this conference.
I find Halpern's behavior to be utterly despicable, and think it's only right that anyone attending this conference should know that he aided the DEA in trying to persue legal action not only against his mentors, but also against other speakers at this very conference.
That said, I bet its so fucking cool throwing insults at people you don't know from behind your computer screen. srsly get a fucking life.